DE974341C - Anordnung zur Erhoehung der Empfindlichkeit von Erdschlussrelais - Google Patents

Anordnung zur Erhoehung der Empfindlichkeit von Erdschlussrelais

Info

Publication number
DE974341C
DE974341C DES3239D DES0003239D DE974341C DE 974341 C DE974341 C DE 974341C DE S3239 D DES3239 D DE S3239D DE S0003239 D DES0003239 D DE S0003239D DE 974341 C DE974341 C DE 974341C
Authority
DE
Germany
Prior art keywords
arrangement
current
relay
currents
fault
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DES3239D
Other languages
German (de)
English (en)
Inventor
Hermann Dipl-Ing Neugebauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Corp filed Critical Siemens Corp
Priority to DES3239D priority Critical patent/DE974341C/de
Priority to JP1265855U priority patent/JPS3311545Y1/ja
Application granted granted Critical
Publication of DE974341C publication Critical patent/DE974341C/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/34—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Control Of Temperature (AREA)
  • Control Of Resistance Heating (AREA)
DES3239D 1943-04-22 1943-04-22 Anordnung zur Erhoehung der Empfindlichkeit von Erdschlussrelais Expired DE974341C (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DES3239D DE974341C (de) 1943-04-22 1943-04-22 Anordnung zur Erhoehung der Empfindlichkeit von Erdschlussrelais
JP1265855U JPS3311545Y1 (enrdf_load_stackoverflow) 1943-04-22 1955-01-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES3239D DE974341C (de) 1943-04-22 1943-04-22 Anordnung zur Erhoehung der Empfindlichkeit von Erdschlussrelais

Publications (1)

Publication Number Publication Date
DE974341C true DE974341C (de) 1960-12-01

Family

ID=7470051

Family Applications (1)

Application Number Title Priority Date Filing Date
DES3239D Expired DE974341C (de) 1943-04-22 1943-04-22 Anordnung zur Erhoehung der Empfindlichkeit von Erdschlussrelais

Country Status (2)

Country Link
JP (1) JPS3311545Y1 (enrdf_load_stackoverflow)
DE (1) DE974341C (enrdf_load_stackoverflow)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
JPS3311545Y1 (enrdf_load_stackoverflow) 1958-08-01

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